package com.heima.article.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleHomeDto;

import com.heima.model.article.dtos.articleDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;


@Service
@Transactional
@Slf4j
public class ApArticleServiceImpl  extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    // 单页最大加载的数字
    private final static short MAX_PAGE_SIZE = 50;

    @Autowired
    private ApArticleMapper apArticleMapper;
    @Autowired
    private ArticleFreemarkerService articleFreemarkerService;
    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

    /**
     * 根据参数加载文章列表
     * @param loadtype 1为加载更多  2为加载最新
     * @param dto
     * @return
     */
    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDto dto) {
        //1.校验参数
        Integer size = dto.getSize();
        if(size == null || size == 0){
            size = 10;
        }
        size = Math.min(size,MAX_PAGE_SIZE);
        dto.setSize(size);

        //类型参数检验
        if(!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE)&&!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)){
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //文章频道校验
        if(StringUtils.isEmpty(dto.getTag())){
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }

        //时间校验
        if(dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if(dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        //2.查询数据
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, loadtype);

        //3.结果封装
        ResponseResult responseResult = ResponseResult.okResult(apArticles);
        return responseResult;
    }

    @Override
    public ResponseResult saveArticle(articleDto articledto) {
        //nacos配置文件里面设置设置的超时是2000，这里设置超时时间走降级

        //1.先判断参数
            if(articledto==null)
            {
                ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
            }
            ApArticle apArticle=new ApArticle();
        BeanUtils.copyProperties(articledto,apArticle);
        //2.判断是否存在id
        //2.1 id不存 保存文章 文章配置 文章内容
        if (apArticle.getId()==null)
        {
            //保存文章
            save(apArticle);
            //保存文章配置
            ApArticleConfig apArticleConfig=new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);
            //保存文章内容
            ApArticleContent apArticleContent=new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(articledto.getContent());
            apArticleContentMapper.insert(apArticleContent);
        }
        //有id修改文章
        updateById(apArticle);
        //修改文章内容
        LambdaQueryWrapper<ApArticleContent> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(ApArticleContent::getArticleId,apArticle.getId());
        ApArticleContent apArticleContent = apArticleContentMapper.selectOne(queryWrapper);
        apArticleContent.setContent(articledto.getContent());
        apArticleContentMapper.updateById(apArticleContent);
        //异步调用生成文章html文件保存到mino
        articleFreemarkerService.buildArticleToMinIO(apArticle,articledto.getContent());
        return ResponseResult.okResult(apArticle.getId());
    }


}